Sealants

Loctite sealants and threadlockers: 577 pipe sealant, 569 hydraulic thread sealant, 515 master gasket, 243 nut lock, 263 stud lock and 406 adhesive.

Products

The Loctite service kit: 577 high pressure pipe thread sealant, 569 hydraulic thread sealant, 515 Master Gasket flexible flange sealant, 243 medium strength nut lock, 263 super stud lock and 406 instant adhesive, all in workshop-friendly 25ml and 50ml sizes.

Which Loctite goes on hydraulic fittings?

Loctite 569 is the one specified for hydraulic thread sealing, while 577 covers general high pressure pipe threads. Use 515 on flange faces, and keep 243 for serviceable fasteners and 263 for high strength stud locking.

WeldCo supplies Loctite sealants off the shelf across Melbourne and Adelaide.

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